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https://issues.apache.org/jira/browse/VELOCITY-717?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12858933#action_12858933
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Jarkko Viinamäki commented on VELOCITY-717:
-------------------------------------------
This same bug is obviously in all 1.6.x releases. The bug is not present in
1.5. It slipped in in revision 568691 (2007-08-22).
> Engine throws an NPE using custom macro libs if the IncludeEventHandler
> returns null
> ------------------------------------------------------------------------------------
>
> Key: VELOCITY-717
> URL: https://issues.apache.org/jira/browse/VELOCITY-717
> Project: Velocity
> Issue Type: Bug
> Components: Engine
> Affects Versions: 1.6.2
> Environment: Suse Linux
> Reporter: Johann Weber
> Assignee: Will Glass-Husain
> Priority: Critical
> Fix For: 1.7
>
> Attachments: macros2.vm, test8.vm, Velocity717TestCase.java
>
>
> The Engine throws an NPE if the IncludeEventHandler returns null.
> (using merge method with a list of macro libs)
> java.lang.NullPointerException
> >> at java.util.Hashtable.get(Hashtable.java:333)
> >> at
> >> org.apache.velocity.runtime.VelocimacroManager.getNamespace(VelocimacroManager.java:318)
> >> at
> >> org.apache.velocity.runtime.VelocimacroManager.get(VelocimacroManager.java:215)
> >> at
> >> org.apache.velocity.runtime.VelocimacroFactory.getVelocimacro(VelocimacroFactory.java:563)
> >> at
> >> org.apache.velocity.runtime.RuntimeInstance.getVelocimacro(RuntimeInstance.java:1563)
> >> at
> >> org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:218)
> >> at
> >> org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
> >> at
> >> org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
> >> at
> >> org.apache.velocity.runtime.directive.Parse.render(Parse.java:260)
> >> at
> >> org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
> >> at
> >> org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
> >> at org.apache.velocity.Template.merge(Template.java:328)
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